diff --git a/app_rust/src/passthru.rs b/app_rust/src/passthru.rs
index 1be6b84..5ae9d05 100644
--- a/app_rust/src/passthru.rs
+++ b/app_rust/src/passthru.rs
@@ -279,7 +279,7 @@ impl PassthruDrv {
                 timeout,
             )
         };
-        if res == PassthruError::ERR_BUFFER_EMPTY as i32 && msg_count != 0 {
+        if (res == PassthruError::ERR_BUFFER_EMPTY as i32 || res == PassthruError::ERR_TIMEOUT as i32) && msg_count != 0 {
             write_array.truncate(msg_count as usize);
             return ret_res(0x00, write_array);
         }